diff --git a/reference/apd/functions/override-function.xml b/reference/apd/functions/override-function.xml
index 2095cb0991..e45a09e75c 100644
--- a/reference/apd/functions/override-function.xml
+++ b/reference/apd/functions/override-function.xml
@@ -35,7 +35,7 @@
      <term><parameter>function_args</parameter></term>
      <listitem>
       <para>
-       The function arguments, as a coma separated string.
+       The function arguments, as a comma separated string.
       </para>
       <para>
        Usually you will want to pass this parameter, as well as the